package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
public class EmployeeServiceImpl implements EmployeeService {
    private static final Logger log = LoggerFactory.getLogger(EmployeeServiceImpl.class);
    @Autowired
    private EmployeeMapper employeeMapper;
    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对

        // TODO 后期需要进行md5加密，然后再进行比对
        password=DigestUtils.md5DigestAsHex(password.getBytes());  //MD5加密处理
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }
        //3、返回实体对象
        return employee;
    }
    /**
     * 新增员工
     * @param employeeDTO
     */
    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        //设置状态
        employee.setStatus(StatusConstant.ENABLE);
        //设置密码
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

       /* //设置当前记录的创建和修改时间
        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        //设置当前创建和修改的用户id

        employee.setCreateUser(BaseContext.getCurrentId());
        employee.setUpdateUser(BaseContext.getCurrentId());*/
        employeeMapper.insert(employee);
    }

    /**
     * 分页查询
     * @param employeePageQueryDTO
     * @return
     */
    @Override
    public PageResult listPageEmp(EmployeePageQueryDTO employeePageQueryDTO) {
    /*        String name=employeePageQueryDTO.getName();
        int page=employeePageQueryDTO.getPage();
        int pageSize=employeePageQueryDTO.getPageSize();
        Employee[] pagelist = employeeMapper.pagelist(name, page, pageSize);
        int count=employeeMapper.selectCount();

        Stream<Employee> stream = Arrays.stream(pagelist);

        return new PageResult(count,stream.toList());*/
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        Page<Employee> p=employeeMapper.queryPageList(employeePageQueryDTO);
        return new PageResult(p.getTotal(),p.getResult());
    }

    @Override
    public Employee getEmp(Long id) {
       Employee e= employeeMapper.getByID(id);
       e.setPassword("******");
       return e;
    }

    @Override
    public void startOrstop(Integer status, Long id) {
        Employee emp = employeeMapper.getByID(id);
        log.info("获取到的员工：{}",emp);
        if (status==StatusConstant.ENABLE) {
            emp.setStatus(StatusConstant.ENABLE);
        }else {
            log.info("禁用当前用户！");
            emp.setStatus(StatusConstant.DISABLE);
        }
       /* emp.setUpdateUser(BaseContext.getCurrentId());
        emp.setUpdateTime(LocalDateTime.now());*/
        //        log.info("BaseContext.getCurrentId()：{}",BaseContext.getCurrentId());
        employeeMapper.Update(emp);
    }

    @Override
    public void updateEmployee(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        //设置其余的emp信息
      /*  employee.setUpdateUser(BaseContext.getCurrentId());
        employee.setUpdateTime(LocalDateTime.now());*/
        employeeMapper.Update(employee);
    }
}
